you might remember janet jackson burned them on the wardrobe malfunction. they have had some let's say almost nudity over the years at the grammys. a memo has now gone out. this is an example. this was pink a few years ago. >> that was an incredible act. >> she had to wear that on that thing. >> rihanna with the deep plunge. all the stars do that these days. >> if i was like rihanna, i'd do that. >> katy perry, not sure what that is. >> what are they complaining about? >> the memo goes out. this is from cbs to acts and representatives. among other things be sure buttocks and female breasts are adequately covered. >> in other words, guys can have things hanging out. >> nobody wants to see a man. >> thong-type problems are problematic, bare sides or undercurvature of the breast problematic. >> curvature. >> avoid sheer see-through clothing. the network also advising artists to avoid lapel pins for any cause, aids or breast cancer. >> can you wear a flag? >> come on. >> i think the american cause -- >> do you think -- >> it's like waving a red cape in front of